/*
 * Copyright (c) 2009, EzWare
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without 
 * modification, are permitted provided that the following conditions 
 * are met:
 * 
 * Redistributions of source code must retain the above copyright notice, 
 * this list of conditions and the following disclaimer.Redistributions 
 * in binary form must reproduce the above copyright notice, this list of 
 * conditions and the following disclaimer in the documentation and/or 
 * other materials provided with the distribution.Neither the name of the 
 * EzWare nor the names of its contributors may be used to endorse or 
 * promote products derived from this software without specific prior 
 * written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
 * POSSIBILITY OF SUCH DAMAGE.
 * 
 */

package org.chaser.tools

import javax.swing.Icon
import java.awt.Component
import java.awt.Graphics

import scala.swing.Orientation

class CompoundIcon( private val horizontal: Boolean, private val icons: Icon*) extends Icon {

    private sealed val MARGIN = 3
    private val width =
      if ( horizontal ) icons.foldLeft(0)( _ + _.getIconWidth) + ( MARGIN * (icons.length-1))
      else icons.foldLeft(-1)( _ max _.getIconWidth );
      
    private val height = 
      if ( horizontal) icons.foldLeft(-1)( _ max _.getIconHeight )
      else icons.foldLeft(0)( _ + _.getIconHeight) + (MARGIN * (icons.length-1))
    
    def getIconWidth : Int = width
    def getIconHeight: Int = height
    
    def paintIcon( c: Component, g: Graphics, x: Int, y: Int) {
      
       var dx = 0
       var dy = 0
       icons.foreach( icon => {
         
    	   val cx = if (horizontal) 0 else (width  - icon.getIconWidth)/2
           val cy = if (horizontal) (height - icon.getIconHeight)/2 else 0 
         
    	   icon.paintIcon( c, g, x + dx + cx, y + dy + cy );
    	   if ( horizontal ) {
              dx += icon.getIconWidth + MARGIN
    	   } else {
              dy += icon.getIconHeight + MARGIN
           }
       })
      
    }
  
}
